My walmart has a tank just like this for about $10. I'm not really looking to buy it since I already have 6 bettas, but I was just curious if this tank would be okay for a "rescued" betta. Like if (this may sound kind of corny) you go into petsmart or walmart and just feel really bad and just have to save one of their bettas, would this tank be okay for that? I know it's only one gallon with an underground filter, but isn't it better than a little cup, or just a one gallon fish bowl? What do you guys think? Would this is be a better place for an "impulse" betta?